The cylinder on demand (COD) system, which deactivates four cylinders under part load, and a start - stop system make the sonorous eight -
cylinder unit very efficient.
Not exact matches
This engine is a 2 - litre, four -
cylinder turbocharged
unit (larger than the 1.6 - litre norm these days) producing 228bhp at 6000rpm and a
very strong 273 lb ft of torque in a plateau between 1600 - 3000rpm.
Its turbocharged four -
cylinder petrol
unit is
very responsive and gains revs rapidly — you can even detect a muted induction roar.
This is demonstrably a turbocharged engine, whereas the 911 Carrera's six -
cylinder unit disguises its forced induction
very effectively.
The
unit is actually a
very narrow - angle V6, displacing 2861cc, with two offset banks of
cylinders at 15 degrees to one another.
The said
unit is a 2.0 - liter four -
cylinder rated at 180 horsepower, and although it might not be
very powerful and fast, it returns the best fuel economy you can get in the premium midsize segment.
In order to meet the forthcoming CO2 emission specifications without losses in terms of torque and performance, there are two central trends when it comes to combustion
units: downsizing (which means turbocharged engines with fewer
cylinders and less engine displacement); and downspeeding, which is the reduction of the engine speeds combined with a maximum torque that is applied at a
very early stage.
However, whilst all of the engines on offer are
very good, we feel the entry - level 2.0 - liter turbocharged four -
cylinder gasoline
unit will be fine for most buyers.
Being
very similar iterations of the same base engine, there's not really much to separate them in terms of fuel economy (both versions return 19mpg in the city, irrespective of how many wheels are being driven, and the 400 - hp's 26mpg in all - wheel drive and 27mpg in rear - wheel drive formats are only one miles - per - gallon down on what the 300 - hp
unit can muster), so there's
very little holding you back if you can stomach the Red Sport's $ 7,000 premium over the lesser six -
cylinder model.
Being an engine been present in tweaked guises under the hoods of many Chrysler models (including the Pacifica's predecessor, the Chrysler Town and Country), this six -
cylinder unit is
very well - suited to life in a three - row minivan.
The Corsa comes with a confusingly large engine range, and many have
very similar outputs, but the difference between the three - and four -
cylinder units is significant.
All are 1.2 - litre, 4 -
cylinder units with output being
very similar among the three.
The entry - level four -
cylinder power checks in at 185 horses from a 2.7 - liter
unit, but opting for the 270 - horsepower, 3.5 - liter V - 6 provides
very similar fuel economy (19 mpg city, 25 mpg highway).
It's a 1.8 - liter four -
cylinder gasoline engine that only produces 130 - hp and 128 lb - ft of torque, whereas similar
units in rival cars produce more power (138 - hp for the Honda Civic, and the Chevrolet Cruze produces a
very impressive 180 - hp).
Under the hood, you will
very likely find the same 3.8 - liter six -
cylinder unit producing 520 horses for a 0 - 100 km / h in 3,2 seconds.
The 3 -
cylinder 1.5 - litre turbo diesel
unit churns out 114 BHP at 4000 RPM and 270 Nm of torque at 1750 RPM and even after being a three
cylinder unit, refinement is
very good.
Offering spontaneous power and performance, refinement and outstanding efficiency, the two six -
cylinder naturally - aspirated power
units in the BMW Z4 sDrive30i and the BMW Z4 sDrive23i again offer the
very best in their segments.